How long is the flight from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport?

Airlines like United Airlines fly from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport in about 22h 05m. The time it takes to get you to your destination can typically vary by up to . There are 6921 mi between Osaka Itami Airport and Washington, D.C. Dulles Intl Airport.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from ITM to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport as you normally would.

Most accurate provider : When it comes to deals on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Osaka Itami to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Osaka Itami to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Osaka Itami to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Osaka Itami to Dulles Intl.

Can I find deals for business class flights from Osaka Itami to Dulles Intl?

Yes. Cheapflights offers flight deals from Osaka Itami to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$452+ Flights from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheap flight deals from Osaka Itami to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,493 (Mytrip)
One-way from	$452 (Kiwi.com)

Provider with most accurate pricing for Osaka Itami-Washington, D.C. Dulles Intl flight deals.

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Provider most trusted by Cheapflights users for Osaka Itami-Washington, D.C. Dulles Intl flights.

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From Osaka Itami to Washington, D.C. Dulles Intl

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One-way flight from Osaka Itami to Washington, D.C. Dulles Intl

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Find flight deals from Osaka Itami to Dulles Intl

Cheapest flights from Osaka Itami to Dulles Intl
Explore the most affordable flight options available from Osaka Itami to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Thu 12/181:40 pmITM - IAD

3 stops35h 55mMultiple Airlines

Wed 12/319:00 amIAD - ITM

2 stops21h 05mMultiple Airlines

Deal found 10/26

$1,493

Thu 12/182:05 pmITM - IAD

2 stops21h 16mANA

Wed 12/318:15 amIAD - ITM

2 stops20h 40mANA

Deal found 10/26

$1,615

Tue 11/44:00 pmITM - IAD

2 stops18h 26mAir Canada

Fri 11/79:00 amIAD - ITM

2 stops21h 20mAir Canada

Deal found 10/28

$1,733

Sun 12/147:05 amITM - IAD

1 stop16h 05mANA

Sun 12/288:15 amIAD - ITM

2 stops20h 40mANA

Deal found 10/27

$1,813

Mon 12/222:05 pmITM - IAD

2 stops21h 16mANA

Fri 1/211:10 amIAD - ITM

1 stop18h 00mANA

Deal found 10/27

$1,980

Wed 12/104:00 pmITM - IAD

2 stops18h 26mAir Canada

Wed 12/179:00 amIAD - ITM

2 stops20h 10mAir Canada

Deal found 10/26

$1,992

Best flights from Osaka Itami to Dulles Intl
Discover carefully curated flight deals from Osaka Itami to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.

Thu 12/181:40 pmITM - IAD

3 stops35h 55mMultiple Airlines

Wed 12/319:00 amIAD - ITM

2 stops21h 05mMultiple Airlines

Deal found 10/26

$1,493

Tue 4/1412:00 pmITM - IAD

2 stops22h 05mUnited Airlines

Sat 4/1810:05 pmIAD - ITM

2 stops30h 00mUnited Airlines

Deal found 10/25

$1,562

Thu 12/182:05 pmITM - IAD

2 stops21h 16mANA

Wed 12/318:15 amIAD - ITM

2 stops20h 40mANA

Deal found 10/26

$1,615

Thu 1/151:00 pmITM - IAD

1 stop16h 40mUnited Airlines

Mon 3/168:15 amIAD - ITM

2 stops20h 55mUnited Airlines

Deal found 10/27

$1,584

Thu 1/151:00 pmITM - IAD

1 stop16h 40mUnited Airlines

Sun 3/158:15 amIAD - ITM

2 stops20h 55mUnited Airlines

Deal found 10/27

$1,584

Last-minute flights from Osaka Itami to Dulles Intl
Discover last-minute flight deals from Osaka Itami to Dulles Intl. Data last updated October 28, 2025 and is based on user searches.

Wed 10/291:00 pmITM - IAD

1 stop16h 40mUnited Airlines

Fri 10/316:00 amIAD - ITM

2 stops23h 10mUnited Airlines

Deal found 10/27

$2,871

Wed 10/298:00 amITM - IAD

1 stop21h 40mANA

Fri 10/311:20 pmIAD - ITM

1 stop18h 00mANA

Deal found 10/27

$2,891

Wed 10/297:05 amITM - IAD

1 stop16h 05mANA

Wed 10/291:20 pmIAD - ITM

1 stop30h 50mANA

Deal found 10/27

$4,596

Wed 10/297:30 amITM - IAD

1 stop15h 40mMultiple Airlines

Wed 10/296:13 pmIAD - ITM

2 stops48h 17mMultiple Airlines

Deal found 10/27

$7,323

Tue 11/44:00 pmITM - IAD

2 stops18h 26mAir Canada

Fri 11/79:00 amIAD - ITM

2 stops21h 20mAir Canada

Deal found 10/28

$1,733

Tue 11/47:05 amITM - IAD

1 stop16h 05mANA

Fri 11/712:20 pmIAD - ITM

1 stop29h 10mANA

Deal found 10/28

$2,521

Tue 11/41:00 pmITM - IAD

2 stops20h 26mMultiple Airlines

Fri 11/711:10 amIAD - ITM

1 stop17h 00mMultiple Airlines

Deal found 10/28

$2,636

One-way flights from Osaka Itami to Dulles Intl
Search for one-way flight options from Osaka Itami to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated October 28, 2025.

Fri 12/59:35 amITM - IAD

3 stops51h 30mMultiple Airlines

Deal found 10/27

$452

Wed 12/1012:30 pmITM - IAD

3 stops48h 40mMultiple Airlines

Deal found 10/27

$538

Thu 1/1510:00 amITM - IAD

3 stops38h 24mMultiple Airlines

Deal found 10/28

$559

Sat 1/1712:30 pmITM - IAD

3 stops47h 03mMultiple Airlines

Deal found 10/27

$563

Tue 1/139:00 amITM - IAD

3 stops40h 45mMultiple Airlines

Deal found 10/26

$681

Mon 1/1210:30 amITM - IAD

3 stops39h 15mMultiple Airlines

Deal found 10/26

$738

Wed 1/212:05 pmITM - IAD

3 stops34h 19mMultiple Airlines

Deal found 10/27

$743

Wed 1/1410:30 amITM - IAD

3 stops37h 54mMultiple Airlines

Deal found 10/27

$869

Cheapflights Fare Finder

Use the filters below to find and compare flights from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Thu 12/18

1:40 pm-11:35 am

3 stops35h 55m

Washington, D.C. Dulles Intl

Wed 12/31

9:00 am-8:05 pm

2 stops21h 05m

$1,493

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Tue 4/14

12:00 pm-9:05 pm

2 stops22h 05m

Washington, D.C. Dulles Intl

Sat 4/18

10:05 pm-5:05 pm

2 stops30h 00m

$1,562

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Thu 1/15

1:00 pm-3:40 pm

1 stop16h 40m

Washington, D.C. Dulles Intl

Mon 3/16

8:15 am-6:10 pm

2 stops20h 55m

$1,584

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Thu 1/15

1:00 pm-3:40 pm

1 stop16h 40m

Washington, D.C. Dulles Intl

Sun 3/15

8:15 am-6:10 pm

2 stops20h 55m

$1,584

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Thu 12/18

2:05 pm-9:21 pm

2 stops21h 16m

Washington, D.C. Dulles Intl

Wed 12/31

8:15 am-6:55 pm

2 stops20h 40m

$1,615

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Fri 12/5

2:40 pm-4:36 pm

2 stops39h 56m

$710

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Mon 1/12

10:30 am-11:45 am

3 stops39h 15m

$738

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Wed 1/14

2:40 pm-4:26 pm

2 stops39h 46m

$970

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Wed 1/21

2:40 pm-4:26 pm

2 stops39h 46m

$971

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Sun 1/11

4:50 pm-4:26 pm

3 stops37h 36m

$998

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 14 results

Compare providers for flights from Osaka Itami to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Osaka Itami to Dulles Intl in October.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Osaka Itami to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Osaka Itami with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport?
Airlines like United Airlines fly from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport in about 22h 05m. The time it takes to get you to your destination can typically vary by up to . There are 6921 mi between Osaka Itami Airport and Washington, D.C. Dulles Intl Airport.
Can I find deals for flights from Osaka Itami to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Osaka Itami to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Osaka Itami to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Osaka Itami to Dulles Intl.
Can I find deals for business class flights from Osaka Itami to Dulles Intl?
Yes. Cheapflights offers flight deals from Osaka Itami to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$452+ Cheap flights from Osaka Itami (ITM) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Osaka Itami to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Osaka Itami to Dulles Intl

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Most trusted provider

Round-trip from

One-way from

Find flight deals from Osaka Itami to Dulles Intl

Cheapest flights from Osaka Itami to Dulles IntlExplore the most affordable flight options available from Osaka Itami to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Explore the most affordable flight options available from Osaka Itami to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Compare providers for flights from Osaka Itami to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Osaka Itami to Dulles Intl in October.

Best time to book a flight from Osaka Itami to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Osaka Itami with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Osaka Itami to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Osaka Itami to Dulles Intl that include hotel bookings?

How can I find direct flights from Osaka Itami to Dulles Intl?

Can I find deals for business class flights from Osaka Itami to Dulles Intl?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Osaka Itami to Dulles Intl

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Cheapest flights from Osaka Itami to Dulles Intl
Explore the most affordable flight options available from Osaka Itami to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.